キットベンチ MCP server

• Registry namenet.kitbench/kitbenchverified in the MCP registry

The registry name sits under kitbench.net. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

• Stateanswerschecked 2026-10-26
• Tools7
• Server calls itselfkitbench
• Server version1.0.0
• Protocol version2025-06-18

On 2026-10-26 the server answered initialize and tools/list without a sign-in. First answer in 128 ms.

• Whether its tools do the product's job has not been judged yet.
• Checked on 2 of the 7 days it takes to judge reliability.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

• INITE MCP scoreafter a weeka score needs 7 daily checks: 2 so far
• Answeredmeasuring2 of the 7 daily checks it takes to print a share
• Median first answer684 ms
• Space in an agent's context≈ 2,229 tokensthe definitions of all its tools (7), which an agent carries on every turn
• Tool definitionsA · 98 of 100
• Typed results0 of 7 toolsdeclared outputSchema: results come typed, read once

• Parameters without a description: in 1 of 7

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

• count_characters

  Count characters in a text exactly as KitBench's character counter does. Counts user-perceived characters (grapheme clusters: emoji sequences, combining marks and flags count as 1), plus counts excluding newlines and whitespace…

• days_between

  Count the days between two dates: total days (optionally including the start day), weeks and days, years/months/days, Japanese business days (excluding weekends and Japanese national holidays from the Cabinet Office list) and weekdays…

• add_days

  Find the date N days (or N business days) after or before a date, with its weekday and Japanese era date (wareki). unit "business" skips Saturdays, Sundays and Japanese national holidays; "weekdays" skips only weekends. Good for deadlines…

• calculate_age

  Calculate exact age from a birth date: age in years, years/months/days, Japanese kazoedoshi (traditional age), days since birth, next birthday and days until it, weekday of birth, Japanese era (wareki) of the birth date and the zodiac…

• convert_japanese_era

  Convert between Western (Gregorian) dates and Japanese era dates (wareki: Meiji, Taisho, Showa, Heisei, Reiwa), using exact era start dates and "gannen" (元年) for year 1. Give either date (YYYY-MM-DD), or wareki such as "令和元年5月1日" /…

• consumption_tax

  Calculate Japanese consumption tax with exact integer arithmetic: tax-excluded to tax-included or tax-included to tax-excluded, at 10% (standard), 8% (reduced) or any rate from 0 to 100 with up to 2 decimals, rounding down (floor…

• convert_units

  Convert units with official exact factors (NIST etc.), including Japanese units (tsubo, jo/tatami, shaku, sun, go, Japanese cups and spoons), temperature and fuel economy. Returns the exact result, a rounded display value, the factor, and…